Pricing
Not listed
Official monthly price not confirmed
- API
- Public documentation and sample code show IndexWriter, IndexSearcher, and analyzer APIs for building search indexes in .NET.
Lucene.net
● Identity checkedSearch Library · Vendor site 2026-10-04
Apache Lucene.NET is an open source C# port of the Lucene search library for .NET runtimes. It provides indexing, analyzers, and query APIs for full-text search in applications, with broad .NET Standard and .NET Framework support and thousands of passing unit tests.
- Category
- Search Library
- Free access
- Open source Apache 2.0 library distributed via NuGet with no vendor subscription on the project site.
- API access
- Public documentation and sample code show IndexWriter, IndexSearcher, and analyzer APIs for building search indexes in .NET.
Is Lucene.net right for you?
A good fit for
.NET developers who need embedded full-text search, autocomplete, or analytics without running a separate search server.
Before you choose
The project site documents library usage and downloads rather than selling hosted search plans or SLAs.
Open source .NET search
Lucene.NET ports Lucene indexing and query capabilities to C# so .NET teams can build high-performance search features with familiar Lucene concepts and Apache licensing.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Latest release | Homepage highlights Lucene.NET 4.8.0 Beta as the current version with 7800+ passing unit tests. | Facts sourced | 2026-10-04 |
| Runtime targets | Site states support for .NET Standard 2.1, .NET Standard 2.0, and .NET Framework 4.6.2+. | Facts sourced | 2026-10-04 |
| NuGet distribution | Quick start shows installing Lucene.Net via dotnet add package Lucene.Net. | Facts sourced | 2026-10-04 |
Understand the total cost
Lucene.net pricing & plans
Alternatives to Lucene.net
View all ↗
Code Snippets AIIt supports local and cloud LLMs, codebase indexing on paid tiers, and a free Basic plan with your own API keys.
Explore tool
Context.devContext.dev is a web data API for AI agents and LLMs to scrape pages into Markdown, crawl sites, map domains, run batches, research the web, monitor changes, and retrieve brand data through one REST platform with SDKs and MCP support.
Explore tool
AnvilAnvil is a Python-centric platform for building and hosting full-stack web apps with a drag-and-drop UI designer and server-side Python environments. Public pages describe free cloud hosting, paid tiers for custom domains and collaboration, and enterprise deployments with private instances.
Explore toolThe practical questions
Frequently asked questions
What is Lucene.net used for?
Apache Lucene.NET is an open source C# port of the Lucene search library for .NET runtimes. It provides indexing, analyzers, and query APIs for full-text search in applications, with broad .NET Standard and .NET Framework support and thousands of passing unit tests.
Does Lucene.net have a free plan?
Open source Apache 2.0 library distributed via NuGet with no vendor subscription on the project site.. This record does not confirm an ongoing free plan.
How much does Lucene.net cost?
A listed monthly price has not been confirmed. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use Lucene.net through an API?
Public documentation and sample code show IndexWriter, IndexSearcher, and analyzer APIs for building search indexes in .NET.. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
The project site documents library usage and downloads rather than selling hosted search plans or SLAs.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Identity and profile
Reviewed vendor source
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.